Experimental determination of solubility parameters of oils as a function of pressure

Sylvain Charles Roland Verdier, Diep Duong, Simon Ivar Andersen

Research output: Contribution to journalConference articleResearchpeer-review

Abstract

In this work, the solubility parameter of dead and live crude oils was measured at 303.15 K and up to 300 bar, using the internal pressure approach. An indirect technique was chosen, using thermal expansivities (determined from microcalorimetric measurements) and isothermal compressibilities (calculated from density measurements). This method was tested on seven pure compounds, and the deviation with literature data is <1 MPa1/2. A method based on the refractive index was used to examine the validity of the results for the oils, and a deviation of <0.8 MPa1/2 was observed. A modified solubility parameter was also calculated from two cubic equations of state and compared to experimental results. In this case, the deviations are larger (up to 6.5 MPa1/2), whereas this approach gives accurate results for pure compounds. This might be due to the characterization procedure, because the volumes are measured and given as input. Therefore, a more appropriate characterization method should give better results.
Original languageEnglish
JournalEnergy & Fuels
Volume19
Issue number4
Pages (from-to)1225-1229
ISSN0887-0624
DOIs
Publication statusPublished - 2005
Event5th International Conference on Petroleum Phase Behavior and Fouling - Banff, Canada
Duration: 13 Jun 200417 Jun 2004
Conference number: 5
http://www.ualberta.ca/CMENG/IFC-5/program.htm

Conference

Conference5th International Conference on Petroleum Phase Behavior and Fouling
Number5
CountryCanada
CityBanff
Period13/06/200417/06/2004
Internet address

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